Have your thyroid checked

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If it’s not producing enough thyroid hormone, it could be making you feel tired and run-down. A simple blood test will tell. Other symptoms of low thyroid are dry skin, weight gain, constipation, and feeling cold.

List all the people you’re angry with and write each a letter of forgiveness

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Stewing over past events only drains your energy. “Try to accept others for who they are and don’t expend a lot of effort on changing them,” says Dr. Wilson. Oh, and you don’t have to send the letter. Simply writing it is enough.